Systems and methods for performing fault analysis using numerically coded time series data are disclosed. First time series data, including a plurality of first time entries and an associated first data value for each first time entry, may be received for a machine variable for a first printer. Second time series data, including a plurality of second time entries and an associated second data value for each second time entry, may be received for the machine variable for each of a plurality of second printers. For each second printer, a similarity measurement may be determined for the first time series data for the first printer and the second time series data for the second printer. One or more closest matching second printers may be determined based on the similarity measurements. An association may be displayed between the first printer and each closest matching second printer.